CN216953041U - Air-cooled combustion device and gas water heater - Google Patents
Air-cooled combustion device and gas water heater Download PDFInfo
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- CN216953041U CN216953041U CN202123299993.1U CN202123299993U CN216953041U CN 216953041 U CN216953041 U CN 216953041U CN 202123299993 U CN202123299993 U CN 202123299993U CN 216953041 U CN216953041 U CN 216953041U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses an air-cooled combustion device and a gas water heater, comprising: the combustor comprises a combustion chamber shell and a combustor assembly, wherein a combustion chamber and a first cooling air channel are arranged in the combustion chamber shell, and a first air inlet hole communicated with the first cooling air channel is formed in the outer side wall of the combustion chamber shell; a second cooling air channel is further arranged in the combustion chamber shell, and a second air inlet hole communicated with the second cooling air channel is formed in the outer side wall of the combustion chamber shell; the combustor assembly is arranged at the bottom of the combustion chamber shell and is provided with a gas-air mixing inlet, the bottom of the combustor assembly is provided with a first air supply inlet communicated with the first cooling air channel, and the first air supply inlet is communicated with the combustion chamber; and a second air supply inlet communicated with the combustion chamber and a second cooling air channel is arranged between the flame nozzle and the gas-air mixing inlet. The air-cooled combustion device provided by the utility model can realize air-cooled cooling of the combustion chamber and can improve the combustion efficiency.
Description
Technical Field
The utility model relates to the technical field of hot water equipment, in particular to an air-cooled combustion device and a gas water heater.
Background
The heat exchanger of the gas water heater is generally made of copper, the copper heat exchanger is easily corroded and penetrated in certain areas with poor water quality, so that the problem of water leakage of a pipe coil part of the copper heat exchanger is easily caused, the pipe coil is mainly used for cooling a burner, and the water heater cannot timely dissipate heat easily due to damage of the pipe coil. Therefore, the air-cooled combustion device is arranged in part of the gas water heater, and is cooled through air-cooled circulating heat exchange, so that the temperature in the combustion chamber is reduced, and the effect of surface temperature rise is the same as or lower than that of the peripheral temperature of the copper heat exchanger. At present, most of air-cooled combustion devices adopt the mode that air enters a cooling channel through an air inlet hole and cools the inner wall of a combustion chamber, and then flows out of the cooling channel to be mixed with flue gas; on the other hand, the combustor needs secondary air distribution, and the air used for cooling the combustion chamber of the existing combustion device does not participate in combustion, which easily causes the insufficient amount of secondary air distribution, and further influences the combustion condition.
SUMMERY OF THE UTILITY MODEL
The utility model provides an air-cooled combustion device, which can realize air-cooled cooling of a combustion chamber and can improve combustion efficiency.
The utility model also provides a gas water heater with the air-cooled combustion device.
The air-cooled combustion device provided by the embodiment of the utility model comprises: the combustor comprises a combustion chamber shell and a combustor assembly, wherein a combustion chamber and a first cooling air channel are arranged in the combustion chamber shell, the combustion chamber is adjacent to the first cooling air channel and is arranged at an interval, a first air inlet communicated with the first cooling air channel is formed in the outer side wall of the combustion chamber shell, and the first air inlet is positioned on one side of the combustion chamber; a second cooling air channel is further arranged in the combustion chamber shell, the second cooling air channel is adjacent to the combustion chamber and is arranged at an interval, a second air inlet hole communicated with the second cooling air channel is formed in the outer side wall of the combustion chamber shell, and the second air inlet hole is located on one side of the combustion chamber; the combustor assembly is arranged at the bottom of the combustion chamber shell and is provided with a gas-air mixing inlet, a flame nozzle of the combustor assembly faces the combustion chamber, the bottom of the combustor assembly is provided with a first air supply inlet communicated with the first cooling air channel, and the first air supply inlet is communicated with the combustion chamber; and a second air supply inlet is arranged between the flame nozzle and the gas-air mixing inlet and communicated between the second air inlet hole and the combustion chamber.
The air-cooled combustion device provided by the embodiment of the utility model at least has the following beneficial effects: the outside fresh air enters the first cooling air channel from the first air inlet hole, and the first cooling air channel is adjacent to the combustion chamber and arranged at intervals, so that the fresh air entering the first cooling air channel can be used for cooling the combustion chamber, and the second cooling air channel and the first cooling air channel have the same structure and can be used for cooling the combustion chamber to prevent the temperature of the shell of the combustion chamber from being overhigh; the air in the first cooling air duct and the second cooling air duct is heated by the side wall of the combustion chamber while cooling the combustion chamber to form hot air, and a part of hot air after heat exchange flows to the first air supply inlet from the first cooling air duct and flows into the combustion chamber through the burner assembly; in addition, another part of hot air after heat exchange flows to the second air supply inlet from the second cooling air duct, and the second air supply inlet is positioned between the flame nozzle and the fuel gas air mixing inlet, so that the part of hot air can flow to the vicinity of the flame nozzle more quickly to participate in combustion, and the combustion-supporting efficiency of the hot air is higher than that of cold air, so that the part of hot air directly participating in combustion can directly increase the combustion efficiency in the combustion chamber. In conclusion, the air sucked from the first air inlet hole and the second air inlet hole is fully utilized, and the two hot air streams respectively improve the combustion efficiency of the combustion chamber in different modes, so that the overall performance of the gas water heater is improved.
According to some embodiments of the present invention, the first air inlet holes and the second air inlet holes are provided in plurality, and the plurality of first air inlet holes and the plurality of second air inlet holes are arranged along a same horizontal level and transversely along an outer sidewall of the combustion chamber housing.
According to some embodiments of the present invention, a plurality of rows of auxiliary air inlet holes are disposed below the first air inlet hole and/or the second air inlet hole, each row of auxiliary air inlet holes including a plurality of auxiliary air inlet holes arranged in a height direction, and a diameter of the auxiliary air inlet holes is smaller than a diameter of the second air inlet holes.
According to some embodiments of the utility model, the first cooling air duct and the second cooling air duct are in communication with each other.
According to some embodiments of the present invention, the combustion chamber housing includes an outer casing and an inner casing, the combustion chamber is disposed in the inner casing, the first cooling air duct and the second cooling air duct are formed between the outer casing and the inner casing, and the first air inlet hole and the second air inlet hole are disposed in a side wall of the outer casing.
According to some embodiments of the present invention, the burner assembly includes a burner housing and a plurality of fire rows, the burner housing is provided with a housing cavity, the fire rows are disposed in the housing cavity, the flame nozzles are disposed at the tops of the fire rows, the gas-air mixing inlet is located at one side of the fire rows, the bottom of the burner housing is provided with an air distribution plate, a transition channel is formed between the air distribution plate and the bottom wall of the outer shell, the first air supply inlet is a plurality of air supply holes uniformly distributed on the air distribution plate, and the first cooling air duct is communicated with the air supply holes through the transition channel.
According to some embodiments of the utility model, the burner accommodation shell is provided with a connection channel, the second air supply inlet is arranged on a side wall of the accommodation cavity, and the second cooling air duct is communicated with the second air supply inlet through the connection channel.
According to some embodiments of the present invention, the outer casing is provided with a convex hull protruding outward, and the first air inlet hole and the second air inlet hole are provided on the convex hull.
According to some embodiments of the utility model, the outer shell comprises a front wall panel, a rear wall panel, a left wall panel, a right wall panel and a bottom wall panel, the inner shell comprises a front inner lining panel, a rear inner lining panel, a left inner lining panel and a right inner lining panel, the second cooling air duct is formed between the front wall panel and the front inner lining panel, the left wall panel, the right wall panel, the rear wall panel and the bottom wall panel enclose a mounting area for mounting a burner assembly, an avoidance port for avoiding the gas-air mixing inlet is formed between the front wall panel and the bottom wall panel, and the first cooling air duct is formed between the left wall panel and the left inner lining panel, the right wall panel and the right inner lining panel, and the rear wall panel and the rear inner lining panel.
The gas water heater according to the embodiment of the second aspect of the utility model comprises the air-cooled combustion device according to the embodiment of the first aspect of the utility model.
The gas water heater provided by the embodiment of the utility model at least has the following beneficial effects: the outside fresh air enters the first cooling air channel from the first air inlet hole, and the first cooling air channel is adjacent to the combustion chamber and arranged at intervals, so that the fresh air entering the first cooling air channel can be used for cooling the combustion chamber, and the second cooling air channel and the first cooling air channel have the same structure and can be used for cooling the combustion chamber to prevent the temperature of the shell of the combustion chamber from being overhigh; the air in the first cooling air duct and the second cooling air duct is heated by the side wall of the combustion chamber while cooling the combustion chamber to form hot air, and a part of hot air after heat exchange flows to the first air supply inlet from the first cooling air duct and flows into the combustion chamber through the burner assembly; in addition, another part of hot air after heat exchange flows to the second air supply inlet from the second cooling air duct, and the second air supply inlet is positioned between the flame nozzle and the fuel gas air mixing inlet, so that the part of hot air can flow to the vicinity of the flame nozzle more quickly to participate in combustion, and the combustion-supporting efficiency of the hot air is higher than that of cold air, so that the part of hot air directly participating in combustion can directly increase the combustion efficiency in the combustion chamber. In conclusion, the air sucked from the first air inlet hole and the second air inlet hole is fully utilized, and the two hot air streams respectively improve the combustion efficiency of the combustion chamber in different modes, so that the overall performance of the gas water heater is improved.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic cross-sectional view of an air-cooled combustion apparatus according to an embodiment of the present invention;
FIG. 2 is another schematic cross-sectional view of an air-cooled combustion apparatus according to an embodiment of the present invention;
FIG. 3 is an exploded view of an air-cooled combustion apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic view of an air-cooled combustion apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic view of a gas water heater according to an embodiment of the present invention.
Reference numerals:
the combustor comprises a combustion chamber shell 100, a front wall panel 101, a rear wall panel 102, a left wall panel 103, a right wall panel 104, a bottom wall panel 105, a front inner lining panel 106, a rear inner lining panel 107, a left inner lining panel 108, a right inner lining panel 109, a combustion chamber 110, a first cooling air duct 120, a first air inlet hole 121, a second cooling air duct 130, a second air inlet hole 131, an auxiliary air inlet hole 132, a convex hull 140, an escape opening 150, a combustor assembly 200, a fire row 210, a flame nozzle 211, a gas-air mixing inlet 212, a combustor accommodating shell 220, a connecting channel 221, a second air supply inlet 222, an accommodating cavity 223, an air distribution plate 230, a first air supply inlet 231, a transition channel 232, a heat exchange component 300, a smoke collection and exhaust component 400 and a water heater shell 500.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means is one or more, a plurality of means is two or more, and greater than, less than, more than, etc. are understood as excluding the essential numbers, and greater than, less than, etc. are understood as including the essential numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 and 2, an air-cooled combustion apparatus according to an embodiment of the present invention includes: the combustor comprises a combustion chamber shell 100 and a combustor assembly 200, wherein a combustion chamber 110 and a first cooling air channel 120 are arranged in the combustion chamber shell 100, the combustion chamber 110 is adjacent to the first cooling air channel 120 and is arranged at an interval, a first air inlet hole 121 communicated with the first cooling air channel 120 is arranged on the outer side wall of the combustion chamber shell 100, and the first air inlet hole 121 is positioned on one side of the combustion chamber 110; a second cooling air duct 130 is further arranged in the combustion chamber shell 100, the second cooling air duct 130 is adjacent to the combustion chamber 110 and is arranged at an interval, a second air inlet hole 131 communicated with the second cooling air duct 130 is arranged on the outer side wall of the combustion chamber shell 100, and the second air inlet hole 131 is positioned on one side of the combustion chamber 110; the burner assembly 200 is arranged at the bottom of the combustion chamber shell 100 and is provided with a gas-air mixing inlet 212, a flame nozzle 211 of the burner assembly 200 faces the combustion chamber 110, the bottom of the burner assembly 200 is provided with a first air supply inlet 231 communicated with the first cooling air duct 120, and the first air supply inlet 231 is communicated with the combustion chamber 110; a second air supply inlet 222 is arranged between the flame nozzle 211 and the gas-air mixing inlet 212, and the second air supply inlet 222 is communicated between the second air inlet 131 and the combustion chamber 110.
In the above embodiment, the outside fresh air enters the first cooling air duct 120 from the first air inlet hole 121, and because the first cooling air duct 120 is adjacent to and spaced apart from the combustion chamber 110, the fresh air entering the first cooling air duct 120 can be used for cooling the combustion chamber 110, and the second cooling air duct 130 has substantially the same structure as the first cooling air duct 120, and can be used for cooling the combustion chamber 110, so as to prevent the combustion chamber housing 100 from having an excessively high temperature; the air in the first cooling air duct 120 and the second cooling air duct 130 is heated by the side wall of the combustion chamber while cooling the combustion chamber, and forms hot air, and a part of the hot air after heat exchange flows from the first cooling air duct 120 to the first air supply inlet 231 and flows into the combustion chamber 110 through the burner assembly 200, and this process hot air can heat the burner assembly 200, so that the mixed gas entering the burner assembly 200 from the gas-air mixing inlet 212 is preheated, thereby improving the mixing efficiency of gas and air and improving the combustion efficiency, further, the hot air enters the upper part of the flame nozzle 211 in the combustion chamber 110 to participate in combustion, and this part of air is fully utilized; in addition, another part of the hot air after heat exchange flows from the second cooling air duct 130 to the second air supply inlet 222, and since the second air supply inlet 222 is located between the flame nozzle 211 and the gas-air mixing inlet 212, the part of the hot air can flow to the vicinity of the flame nozzle 211 more quickly to participate in combustion, and since the combustion efficiency of the hot air is higher than that of the cold air, the part of the hot air directly participating in combustion can directly increase the combustion efficiency in the combustion chamber 110. In conclusion, the air sucked from the first and second air inlet holes 121 and 131 is fully utilized, and the two hot air streams respectively improve the combustion efficiency of the combustion chamber 110 in different ways, thereby improving the overall performance of the gas water heater.
In some embodiments of the present invention, the first air inlet holes 121 and the second air inlet holes 131 are provided in plurality, and the plurality of first air inlet holes 121 and the plurality of second air inlet holes 131 are arranged along the same horizontal height and transversely along the outer side wall of the combustion chamber housing 100, so that the inlet air of the first air inlet holes 121 and the second air inlet holes 131 is more uniformly dispersed, which is beneficial to uniformly cool the positions of the side wall of the combustion chamber 110 by the air. Of course, it is conceivable that in other embodiments, the first air inlet hole 121 and the second air inlet hole 131 are respectively configured as a strip-shaped hole, and the strip-shaped holes are arranged in the transverse direction, so that the horizontal width of the air inlet hole can be increased, and the air inlet efficiency can be improved.
In some embodiments of the present invention, a plurality of auxiliary air inlet hole sets are disposed below the first air inlet hole 121 and/or the second air inlet hole 131, each auxiliary air inlet hole set includes a plurality of auxiliary air inlet holes 132 arranged in a height direction, and the auxiliary air inlet holes 132 have a smaller hole diameter than the second air inlet hole 131. The auxiliary hole sets are beneficial to increasing the air inlet area of the second cooling air duct 130, so that the air inlet process of the second cooling air duct 130 is uniform and efficient.
In some embodiments of the present invention, the first cooling air duct 120 and the second cooling air duct 130 are communicated with each other, so that the arrangement is beneficial to improving the passing efficiency of air in the first cooling air duct 120 and the second cooling air duct 130, and improving the air volume of the secondary air distribution in unit time.
In some embodiments of the present invention, the combustion chamber casing 100 includes an outer casing and an inner casing, the combustion chamber 110 is disposed in the inner casing, a first cooling air duct 120 and a second cooling air duct 130 are formed between the outer casing and the inner casing, and a first air inlet hole 121 and a second air inlet hole 131 are disposed in a side wall of the outer casing.
In some embodiments of the present invention, as shown in fig. 1, 2 and 3, the burner assembly 200 includes a burner accommodation shell 220 and a plurality of fire rows 210, the burner accommodation shell 220 is provided with an accommodation cavity 223, the plurality of fire rows 210 are disposed in the accommodation cavity 223, flame nozzles 211 are disposed at the top of the fire rows 210, a gas and air mixing inlet 212 is located at one side of the fire rows 210, an air distribution plate 230 is disposed at the bottom of the burner accommodation shell 220, a transition channel 232 is formed between the air distribution plate 230 and the bottom wall of the outer shell, a first air supply inlet 231 is a plurality of air supply holes uniformly distributed on the air distribution plate 230, and the first cooling air duct 120 is communicated with the air supply holes through the transition channel 232. When the air in the first cooling air duct 120 flows to the bottom of the combustion chamber housing 100, the air firstly enters the transition passage 232 and reaches the lower part of the air distribution plate 230, and because the air distribution plate 230 is provided with a plurality of uniformly distributed air supply holes, the air distribution plate 230 can uniformly distribute the air, so that the air uniformly and dispersedly flows through the flame spray holes and flows into the combustion chamber 110, and the quality of secondary air distribution is improved.
In some embodiments of the present invention, the burner accommodating case 220 is provided with a connection passage 221, the second air supply inlet 222 is provided at a sidewall of the accommodating chamber 223, and the second cooling air duct 130 communicates with the second air supply inlet 222 through the connection passage 221.
In some embodiments of the present invention, the convex hull 140 protruding outward is disposed on the outer shell, the first air inlet hole 121 and the second air inlet hole 131 are disposed on the convex hull 140, and the arrangement of the convex hull 140 is beneficial to increase the space of the first cooling air duct 120 and the second cooling air duct 130, so as to facilitate the fresh air to pass through the first cooling air duct 120 and the second cooling air duct 130, and improve the cooling and cooling effects on the combustion chamber 110.
In some embodiments of the present invention, as shown in fig. 3 and 4, the outer casing includes a front wall 101, a rear wall 102, a left wall 103, a right wall 104, and a bottom wall 105, the inner casing includes a front inner liner 106, a rear inner liner 107, a left inner liner 108, and a right inner liner 109, a second cooling duct 130 is formed between the front wall 101 and the front inner liner 106, the left wall 103, the right wall 104, the rear wall 102, and the bottom wall 105 enclose a mounting area for mounting the burner assembly 200, an escape opening 150 is formed between the front wall 101 and the bottom wall 105 for escaping from the gas-air mixing inlet 212, and a first cooling duct 120 is formed between the left wall 103 and the left inner liner 108, the right wall 104 and the right inner liner 109, and the rear wall 102 and the rear inner liner 107. By the above-mentioned implementation, the first cooling air duct 120 and the second cooling air duct 130 are formed, the burner assembly 200 is installed on the installation area, the gas-air mixture inlet 212 of the burner assembly faces the direction of the dash panel 101, and therefore the escape opening 150 formed between the dash panel 101 and the dash panel 105 can be used for escaping from the gas-air mixture inlet 212, and the installation of some components such as the control solenoid valve is convenient.
Further, in the above-described embodiment, the upper edges of the dash panel 101, the dash panel 102, the left dash panel 103, and the right dash panel 104 are provided with the first flanges, and the upper edges of the front inner liner 106, the rear inner liner 107, the left inner liner 108, and the right inner liner 109 are provided with the second flanges that are sealingly attached to the first flanges, so that the top of the first cooling air duct 120 is relatively closed by attaching the first flanges to the second flanges, and the air in the first cooling air duct 120 is prevented from escaping from the gaps between the first flanges and the second flanges.
Further, in the above embodiment, the back panel 102, the left panel 103 and the back panel 102 are bent and formed into an integral structure through sheet metal, and then the right panel 104 and other panels form a shell through splicing and assembling, so that the shell is convenient to process and manufacture; the rear inner lining plate 107, the left inner lining plate 108 and the right inner lining plate 109 are formed into an integral structure through sheet metal bending, and then the money inner lining plate and other inner lining plates form an inner shell in a splicing assembly mode, so that the processing and manufacturing of the inner shell are facilitated.
As shown in fig. 5, the utility model also discloses a gas water heater comprising an air-cooled combustion device, the gas water heater further comprises a water heater shell 500, a smoke collection and discharge assembly 400 and a heat exchange assembly 300, wherein the air-cooled combustion device, the smoke collection and discharge assembly 400 and the heat exchange assembly 300 are all accommodated in the water heater shell 500, the smoke collection and discharge assembly 400, the heat exchange assembly 300 and the air-cooled combustion device are sequentially arranged and connected from top to bottom, and the water heater shell 500, the smoke collection and discharge assembly 400 and the heat exchange assembly 300 are all common structural components and are matched with the air-cooled combustion device, so that the normal operation of the gas water heater is ensured.
In the gas water heater in the above embodiment, the external fresh air enters the first cooling air channel 120 from the first air inlet hole 121, and since the first cooling air channel 120 is adjacent to and spaced from the combustion chamber 110, the fresh air entering the first cooling air channel 120 can be used for cooling the combustion chamber 110, and the second cooling air channel 130 and the first cooling air channel 120 have substantially the same structure, and can be used for cooling the combustion chamber 110, so as to prevent the combustion chamber housing 100 from having an excessively high temperature; the air in the first cooling air duct 120 and the second cooling air duct 130 is heated by the side wall of the combustion chamber while cooling the combustion chamber to form hot air, and a part of the hot air after heat exchange flows from the first cooling air duct 120 to the first air supply inlet 231 and flows into the combustion chamber 110 through the burner assembly 200, and the hot air can heat the burner assembly 200 in this process, so that the mixed gas entering the burner assembly 200 from the gas-air mixing inlet 212 is preheated, thereby improving the mixing efficiency of the gas and the air and improving the combustion efficiency, further, the hot air enters the combustion chamber 110 above the flame nozzles 211 to participate in combustion, and the air is fully utilized; in addition, another part of the hot air after heat exchange flows from the second cooling air duct 130 to the second air supply inlet 222, and since the second air supply inlet 222 is located between the flame nozzle 211 and the gas-air mixing inlet 212, the part of the hot air can flow to the vicinity of the flame nozzle 211 more quickly to participate in combustion, and since the combustion efficiency of the hot air is higher than that of the cold air, the part of the hot air directly participating in combustion can directly increase the combustion efficiency in the combustion chamber 110. In conclusion, the air sucked from the first and second air inlet holes 121 and 131 is fully utilized, and the two hot air streams respectively improve the combustion efficiency of the combustion chamber 110 in different ways, thereby improving the overall performance of the gas water heater.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The present embodiment has been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (10)
1. An air-cooled combustion apparatus, comprising:
the combustor comprises a combustion chamber shell (100), wherein a combustion chamber (110) and a first cooling air channel (120) are arranged in the combustion chamber shell (100), the combustion chamber (110) and the first cooling air channel (120) are arranged adjacent to each other at intervals, a first air inlet hole (121) communicated with the first cooling air channel (120) is formed in the outer side wall of the combustion chamber shell (100), and the first air inlet hole (121) is located on one side of the combustion chamber (110); a second cooling air channel (130) is further arranged in the combustion chamber shell (100), the second cooling air channel (130) is adjacent to the combustion chamber (110) and is arranged at an interval, a second air inlet hole (131) communicated with the second cooling air channel (130) is formed in the outer side wall of the combustion chamber shell (100), and the second air inlet hole (131) is located on one side of the combustion chamber (110);
the combustor assembly (200) is arranged at the bottom of the combustor shell (100) and is provided with a gas-air mixing inlet (212), a flame nozzle (211) of the combustor assembly (200) faces the combustor (110), a first air supply inlet (231) communicated with the first cooling air duct (120) is formed in the bottom of the combustor assembly (200), and the first air supply inlet (231) is communicated with the combustor (110); the flame spout (211) with be equipped with second air feed entry (222) between gas-air mixture inlet (212), second air feed entry (222) intercommunication is in second fresh air inlet (131) with between combustion chamber (110).
2. The air-cooled combustion apparatus according to claim 1,
the first air inlet holes (121) and the second air inlet holes (131) are arranged in a plurality, and the first air inlet holes (121) and the second air inlet holes (131) are arranged in the transverse direction along the same horizontal height and along the outer side wall of the combustion chamber shell (100).
3. The air-cooled combustion apparatus according to claim 1,
a plurality of auxiliary air inlet hole groups are arranged below the first air inlet hole (121) and/or the second air inlet hole (131), each auxiliary air inlet hole group comprises a plurality of auxiliary air inlet holes (132) which are arranged along the height direction, and the aperture of each auxiliary air inlet hole (132) is smaller than that of the second air inlet hole (131).
4. The air-cooled combustion apparatus according to claim 1,
the first cooling air duct (120) and the second cooling air duct (130) are communicated with each other.
5. The air-cooled combustion apparatus according to claim 1,
the combustor casing (100) includes shell and inner shell, combustor (110) is located the inner shell, the shell with form between the inner shell first cooling wind channel (120) with second cooling wind channel (130), first fresh air inlet (121) with second fresh air inlet (131) are located the lateral wall of shell.
6. The air-cooled combustion apparatus according to claim 5,
combustor assembly (200) include combustor holding shell (220) and a plurality of fire row (210), combustor holding shell (220) are equipped with holding chamber (223), and are a plurality of fire row (210) set up in holding chamber (223), flame spout (211) are located the top of fire row (210), gas air mixing inlet (212) are located one side of fire row (210), the bottom of combustor holding shell (220) has air distribution plate (230), air distribution plate (230) with form transition passageway (232) between the diapire of shell, first air feed entry (231) are a plurality of evenly distributed in air feed hole on air distribution plate (230), first cooling wind channel (120) pass through transition passageway (232) with the air feed hole intercommunication.
7. The air-cooled combustion apparatus according to claim 6,
the combustor containing shell (220) is provided with a connecting channel (221), the second air supply inlet (222) is formed in the side wall of the containing cavity (223), and the second cooling air duct (130) is communicated with the second air supply inlet (222) through the connecting channel (221).
8. The air-cooled combustion apparatus according to claim 5,
the air conditioner is characterized in that a convex hull (140) protruding outwards is arranged on the shell, and the first air inlet hole (121) and the second air inlet hole (131) are formed in the convex hull (140).
9. The air-cooled combustion apparatus according to claim 5,
the outer shell comprises a front enclosing plate (101), a rear enclosing plate (102), a left enclosing plate (103), a right enclosing plate (104) and a bottom enclosing plate (105), the inner shell comprises a front inner lining plate (106), a rear inner lining plate (107), a left inner lining plate (108) and a right inner lining plate (109), the second cooling air duct (130) is formed between the front enclosing plate (101) and the front inner lining plate (106), the left enclosing plate (103), the right enclosing plate (104), the rear enclosing plate (102) and the bottom enclosing plate (105) form a mounting area for mounting the burner assembly (200), an avoidance opening (150) for avoiding the gas-air mixing inlet (212) is formed between the front enclosing plate (101) and the bottom enclosing plate (105), and the first cooling air duct (120) is formed between the left enclosing plate (103) and the left enclosing plate (108), the right enclosing plate (104) and the right inner lining plate (109) and the rear enclosing plate (102) and the rear inner lining plate (107).
10. A gas water heater comprising an air-cooled combustion unit as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123299993.1U CN216953041U (en) | 2021-12-23 | 2021-12-23 | Air-cooled combustion device and gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123299993.1U CN216953041U (en) | 2021-12-23 | 2021-12-23 | Air-cooled combustion device and gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216953041U true CN216953041U (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123299993.1U Active CN216953041U (en) | 2021-12-23 | 2021-12-23 | Air-cooled combustion device and gas water heater |
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| Country | Link |
|---|---|
| CN (1) | CN216953041U (en) |
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2021
- 2021-12-23 CN CN202123299993.1U patent/CN216953041U/en active Active
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